DISPATCH_SOURCE_TYPE_TIMER A type of dispatch source for monitoring a timer. iOSiPadOSMac CatalystmacOStvOSvisionOSwatchOS #defineDISPATCH_SOURCE_TYPE_TIMER Discussion A dispatch source that submits the event handler block based on a timer. The handle is unused (pass zero for now). The mas...
dispatch_get_global_queue(QOS_CLASS_DEFAULT,0):dispatch_get_main_queue();dispatch_source_t timer=dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER,0,0,queue);dispatch_source_set_timer(timer,DISPATCH_TIME_NOW,timeInterval*NSEC_PER_SEC,start*NSEC_PER_SEC);dispatch_semaphore_wait(__timerSemaphore,...